Add initial GTK web accessibility framework (third attempt).

content/browser/accessibility/browser_accessibility_gtk.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_GTK_H_

[David Tseng, 2012/05/08 16:52:59]

Check the lint errors here and elsewhere.

+#define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_GTK_H_
+#pragma once
+
+#include "base/compiler_specific.h"
+#include "content/browser/accessibility/browser_accessibility.h"
+#include "webkit/glue/webaccessibility.h"
+
+#include <atk/atk.h>
+
+using webkit_glue::WebAccessibility;
+
+class BrowserAccessibilityGtk;
+class BrowserAccessibilityManagerGtk;
+
+G_BEGIN_DECLS
+
+#define BROWSER_ACCESSIBILITY_TYPE (browser_accessibility_get_type())
+#define BROWSER_ACCESSIBILITY(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST( \
+             (obj), BROWSER_ACCESSIBILITY_TYPE, BrowserAccessibilityAtk))
+#define BROWSER_ACCESSIBILITY_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_CAST( \
+        (klass), BROWSER_ACCESSIBILITY_TYPE, BrowserAccessibilityAtkClass))
+#define IS_BROWSER_ACCESSIBILITY(obj) \
+    (G_TYPE_CHECK_INSTANCE_TYPE((obj), BROWSER_ACCESSIBILITY_TYPE))
+#define IS_BROWSER_ACCESSIBILITY_CLASS(klass) \
+    (G_TYPE_CHECK_CLASS_TYPE((klass), BROWSER_ACCESSIBILITY_TYPE))
+#define BROWSER_ACCESSIBILITY_GET_CLASS(obj) \
+    (G_TYPE_INSTANCE_GET_CLASS( \
+        (obj), BROWSER_ACCESSIBILITY_TYPE, BrowserAccessibilityAtkClass))
+
+typedef struct _BrowserAccessibilityAtk      BrowserAccessibilityAtk;
+typedef struct _BrowserAccessibilityAtkClass BrowserAccessibilityAtkClass;
+
+struct _BrowserAccessibilityAtk {
+  AtkObject parent;
+  BrowserAccessibilityGtk* m_object;
+};
+
+struct _BrowserAccessibilityAtkClass {
+  AtkObjectClass parent_class;
+};
+
+GType browser_accessibility_get_type (void) G_GNUC_CONST;
+
+BrowserAccessibilityAtk* browser_accessibility_new(
+    BrowserAccessibilityGtk* object);
+
+BrowserAccessibilityGtk* browser_accessibility_get_object(
+    BrowserAccessibilityAtk* atk_object);
+
+void browser_accessibility_detach (BrowserAccessibilityAtk* atk_object);
+
+AtkObject* browser_accessibility_get_focused_element(
+    BrowserAccessibilityAtk* atk_object);
+
+G_END_DECLS
+
+class BrowserAccessibilityGtk : public BrowserAccessibility {
+ public:
+  BrowserAccessibilityGtk();
+
+  virtual ~BrowserAccessibilityGtk();
+
+  AtkObject* GetAtkObject() const;
+
+  AtkRole atk_role() { return atk_role_; }
+  const std::string& atk_acc_name() { return atk_acc_name_; }
+
+  // BrowserAccessibility methods.
+  virtual void PreInitialize() OVERRIDE;
+  virtual bool IsNative() OVERRIDE;
+
+ private:
+  virtual void InitRoleAndState();
+
+  // Give BrowserAccessibility::Create access to our constructor.
+  friend class BrowserAccessibility;
+
+  AtkObject* atk_object_;
+  AtkRole atk_role_;
+  std::string atk_acc_name_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityGtk);
+};
+
+#endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_GTK_H_